print(3 != 3)  # 判断不相等 false
print(3 == 2)  # 判断相等 false
print(3 >= 2)  # true
print(3 <= 3)  # true
print(3.0 == 3)  # false--> true
print(True == False)  # false
print('hello' < 'hell')  # 字符串的比较运算：每个字符的ascii码值 false
print(1 < 2 < 3)  # true
print(1 < 2 and 2 < 3)  # true
print('y' < 'x' == False)
print('y' < 'x' and 'x' == False)
